Holley Main Jets 67 #122-67 6490690 13mm Diameter x 150mm long

13mm Diameter x 150mm long

• Storage Temperature : -20-65°C -4-149°F

RPC makes it easy to replace your worn OE water neck with a full selection of both gasket and O-ring style water necks for use in GM

the next step deburrs the previously drilled hole

Holley Main Jets 67 #122-67 6490690 13mm Diameter x 150mm longThese metering orifices control fuel flow into the metering system. They are rated in flow capacity cubic centimeters per minute and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number. Standard Main Jet . 067" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500